Primera División de México Clausura 2009

Primera División de México
Season	2008−09
Champions	UNAM (6th title)
Relegated	Necaxa
Champions League	UNAM (group stage); Pachuca (preliminary round);
Copa Sudamericana	Monterrey; Puebla;
Interliga	Toluca; America; Morelia; Atlas; Guadalajara; UANL; Pachuca; Tecos;
SuperLiga	San Luis; Santos Laguna; UANL; Atlas;
Matches played	153
Goals scored	421 (2.75 per match)
Top goalscorer	Héctor Mancilla; (14 goals)
Biggest home win	Guadalajara 5–0 Pachuca (February 28, 2009)
Biggest away win	Atlas 0–5 Pachuca (May 9, 2009)
	← Apertura 2008 2009–10 →

The 2009 Primera División Clausura was the second football tournament of the Mexican Primera División 2008−09 season. The tournament began on January 16, 2009 and ended on May 31, 2009. Necaxa was relegated to the Primera División A after being in last place of the relegation table. On May 31, 2009 UNAM defeated Pachuca 3–2 on aggregate to win their sixth title. Toluca forward Héctor Mancilla won his second consecutive golden boot after scoring 14 goals, only one ahead of América forward Salvador Cabañas.